Principle and advantages of automatic dosing device

Automatic dosing device is a device used to achieve automated dosing control. It usually consists of a set of sensors, controllers, actuators, and dosing modules. Specifically, the principle of the dosing device can be summarized as follows:

1. Measurement and control: The process of adding medication requires control and monitoring of the flow rate of the treated substance to ensure that the added medication achieves the expected effect according to the set ratio or parameters. In addition, it is necessary to control the dosing time, speed, quantity, etc. through the control system.

2. Transmission: Medications need to enter the processed material through certain transmission methods (such as pipelines, pumps, etc.).

3. Mixing: After adding the medication, it is necessary to mix it to ensure that the medication is fully dissolved and dispersed.

4. Cleaning and maintenance: After a period of use, the dosing device needs to be cleaned and maintained to ensure its normal operation and dosing effectiveness.

Equipment advantages

Automation and Intelligence: It can intelligently adjust the dosage of coagulants based on real-time water quality data, ensuring accurate matching of water quality requirements and improving water treatment efficiency, while reducing manual operation errors and labor intensity.

Accurate measurement and dosage: Equipped with an accurate measurement system, the required dosage of flocculant can be accurately calculated based on parameters such as sewage flow rate and water quality, with errors controlled within a very small range, avoiding waste and overuse of chemicals and reducing treatment costs.Principle and advantages of automatic dosing device

Modular design: Adopting a modular design, it saves space and is easy to install and maintain. Users can flexibly choose different module combinations according to their actual needs to meet various water treatment needs.

The process principle of the automatic dosing device equipment is as follows:

1. Control system

The main control system in the automatic dosing device is the PLC control system, which can comprehensively monitor and control the operation of the equipment. PLC is an advanced industrial control computer based on digital logic and signal geometry interference. The important characteristics of PLC control system are its diversified input/output, fast operation speed, convenient operation, and high reliability.

2. Sensors

Sensors play a crucial role in automation equipment. The commonly used sensors in automatic dosing equipment include liquid level sensors, pressure sensors, temperature sensors, etc. These sensors can monitor the entire dosing process to ensure its stability and reliability.Principle and advantages of automatic dosing device

3. Dosing pump

The dosing pump is an important component of the automatic dosing device, which can accurately add chemicals to the liquid according to the predetermined ratio and time. The types of dosing pumps mainly include centrifugal pumps, gear pumps, vane pumps, etc. The selection of a dosing pump needs to consider factors such as dosing capacity and dosing time.

4. Control valve

The control valve is a component responsible for controlling the direction and flow rate of liquid flow. Common types of control valves include angle valves, butterfly valves, plug valves, etc. The selection of control valves needs to consider factors such as the characteristics of the liquid and the dosing capacity.

Precautions

When assembling a fully automatic dosing device, the following precautions should be taken:

All wiring must be correct and have good contact.

Each component should be firmly fixed to ensure the stability and reliability of the device.

When installing temperature sensors, attention should be paid to their position and measurement range to avoid measurement errors.

When conducting testing, check all connections and ensure that there are no leaks or air leaks.

The maintenance and upkeep of the automatic dosing device should be carried out in accordance with the instructions provided.

Application field

Drinking water treatment: used to remove impurities such as sediment, suspended solids, colloids, etc. from raw water, improve the quality of drinking water, and meet the prescribed drinking water standards.

Industrial wastewater treatment: It can be used as a part of industrial wastewater pretreatment or intermediate treatment to remove heavy metal ions, organic particles, oil and other pollutants from the wastewater, reduce the turbidity and pollutant concentration of the wastewater, and provide good conditions for subsequent deep treatment.

Wastewater treatment plant: In wastewater treatment plants, dosing devices are usually used as part of primary or secondary treatment to remove suspended solids and some organic matter from wastewater, reduce the load on subsequent treatment units, and improve the efficiency and stability of the entire wastewater treatment system.